<textarea name="txt" cols="20" rows="3" onfocus="OnEnter(this)" onblur="OnExit(this)">123
</textarea>
<script language="JavaScript">
function OnEnter( field ) { if( field.value == field.defaultValue ) { field.value = "456"; } }
function OnExit( field ) { if( field.value == "" ) { field.value = field.defaultValue; } }
</script>
以上是点击文本框后,默认文字“123”变成了“456”的代码。怎样使点击变成“456”的同时全选“456”?
</textarea>
<script language="JavaScript">
function OnEnter( field ) { if( field.value == field.defaultValue ) { field.value = "456"; } }
function OnExit( field ) { if( field.value == "" ) { field.value = field.defaultValue; } }
</script>
以上是点击文本框后,默认文字“123”变成了“456”的代码。怎样使点击变成“456”的同时全选“456”?
</textarea>
<script language="JavaScript">
function OnEnter( field ) { if( field.value == field.defaultValue ) { field.value = "456"; } }
function OnExit( field ) { if( field.value == "" ) { field.value = field.defaultValue; } }
</script>
<form>
<div align="center">
<textarea name="yourForm" rows=3 cols=40 wrap=virtual>
poluoluo.com 提示:这里是测试文本......</textarea>
<br>
<br>
<input type=button value="全选内容" onClick="javascript:this.form.yourForm.focus();this.form.yourForm.select();">
</div>
</form>
<form>
<div align="center">
<textarea name="yourForm" rows=3 cols=40 wrap=virtual>
poluoluo.com 提示:这里是测试文本......</textarea>
<br>
<br>
<input type=button value="全选内容" onClick="javascript:this.form.yourForm.value='456';this.form.yourForm.focus();this.form.yourForm.select();">
</div>
</form>